夫痘之初出．先分部位．部位者．天庭地閣．乃額上承漿是也．如那一部位稠者毒之甚．稀者毒之輕．無者即本經(jīng)無毒也．如頭頂額背脊腰委中者太陽經(jīng)也．如面鼻腮頰屬手足陽明經(jīng)．咽喉手背肺經(jīng)也．胸膈舌心部也．脅肋陰器肝膽部也．四肢脾部也．輕則尖圓飽滿．蒼黃膚糙．能食．氣體壯無他癥者吉也．重則空陷癢 ．密串丹浮．肉腫．痘不脹．目閉聲啞不食者．縱有千金難買大限．妙藥何功．又云痘從頭面胸背先灰者．八九日為順．從腳膝腰腿者為逆．如此直指．應驗神矣．